Yamaha YFM70RY Service Manual page 288

ELECTRICAL COMPONENTS...................................................................... 8-55
CHECKING THE SWITCHES ................................................................. 8-57
CHECKING THE BULBS AND BULB SOCKETS ................................... 8-60
CHECKING THE FUSES ........................................................................ 8-61
CHECKING AND CHARGING THE BATTERY....................................... 8-62
CHECKING THE RELAYS ...................................................................... 8-65
CHECKING THE DIODES....................................................................... 8-66
CHECKING THE SPARK PLUG CAP ..................................................... 8-66
CHECKING THE IGNITION COIL ........................................................... 8-67
CHECKING THE IGNITION SPARK GAP............................................... 8-67
CHECKING THE CRANKSHAFT POSITION SENSOR.......................... 8-68
CHECKING THE LEAN ANGLE SENSOR.............................................. 8-68
CHECKING THE STARTER MOTOR OPERATION ............................... 8-69
CHECKING THE STATOR COIL ............................................................ 8-69
CHECKING THE RECTIFIER/REGULATOR .......................................... 8-70
CHECKING THE FUEL SENDER ........................................................... 8-70
CHECKING THE SPEED SENSOR ........................................................ 8-71
CHECKING THE RADIATOR FAN MOTOR ........................................... 8-71
CHECKING THE RADIATOR FAN MOTOR CIRCUIT BREAKER ......... 8-71
CHECKING THE COOLANT TEMPERATURE SENSOR....................... 8-72
CHECKING THE THROTTLE POSITION SENSOR ............................... 8-73
CHECKING THE INTAKE AIR PRESSURE SENSOR ........................... 8-73
CHECKING THE INTAKE AIR TEMPERATURE SENSOR .................... 8-73